{"id":"CVE-2026-54265","aliases":["GHSA-58w9-8g37-x9v5"],"url":"https://o3.security/vulnerability/CVE-2026-54265","summary":"Angular: Two-Way Property Binding Sanitization Bypass (XSS)","details":"Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.1, 21.2.17, and 20.3.25, an issue in the @angular/compiler package allows bypassing DOM property sanitization through the use of two-way property bindings. Specifically, when a native DOM property that requires sanitization (such as innerHTML, srcdoc, src, href, data, or sandbox) is bound using the two-way binding syntax (e.g., [(innerHTML)]=\"value\" or bindon-innerHTML=\"value\"), the Angular template compiler failed to apply the appropriate schema-derived sanitizer resolution to the TwoWayProperty operation. As a result, native two-way DOM bindings were emitted without the required sanitizer function, whereas equivalent one-way bindings would be properly sanitized. This flaw enables an attacker who can control the value of a two-way bound sensitive property to bypass Angular's built-in sanitization logic, potentially leading to client-side Cross-Site Scripting (XSS). This vulnerability is fixed in 22.0.1, 21.2.17, and 20.3.25.","published":"2026-06-22T15:27:38.802Z","modified":"2026-08-12T03:51:48.516618632Z","cvss":null,"epss":{"score":0.00344,"percentile":0.27159,"asOf":"2026-09-02"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"@angular/compiler","fixedVersion":"22.0.1"},{"ecosystem":"npm","name":"@angular/compiler","fixedVersion":"21.2.17"},{"ecosystem":"npm","name":"@angular/compiler","fixedVersion":"20.3.25"},{"ecosystem":"npm","name":"@angular/compiler","fixedVersion":null}],"fix":{"url":"https://github.com/angular/angular/commit/3c70270c96677c0dd33585f2afe8e187113e5fb4","label":"angular/angular@3c70270"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54265.json"},{"type":"ADVISORY","url":"https://github.com/angular/angular/security/advisories/GHSA-58w9-8g37-x9v5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54265"},{"type":"FIX","url":"https://github.com/angular/angular/commit/3c70270c96677c0dd33585f2afe8e187113e5fb4"},{"type":"FIX","url":"https://github.com/angular/angular/pull/69107"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:48.516618632Z"}}